class Student:
    name = "张三"

    def info(self):
        self.sex = "男"
        print("信息")

    @classmethod
    def cinfo(cls):
        print(cls.name);
        print("类方法")

    @staticmethod
    def sinfo():
        print(Student.name)
        Student.cinfo()
        print("静态方法")


s = Student()

s.sinfo()